Vibration isolator with curved surface honeycomb structure

Abstract

The invention discloses a vibration isolator of a curved surface honeycomb structure, and belongs to the technical field of vibration isolation equipment. The vibration isolator of the curved surface honeycomb structure comprises a vibration isolation body, the vibration isolation body comprises a curved surface honeycomb ring, the curved surface honeycomb ring comprises a plurality of curved surface honeycomb cell elements, and the curved surface honeycomb cell elements comprise regular hexagonal curved surface honeycomb cell elements, triangular curved surface honeycomb cell elements and hexagonal negative poisson ratio curved surface honeycomb cell elements. Therefore, the vibration isolator has good vibration isolation performance and has the advantages of being high in impact resistance and long in service cycle, and the safety and economical efficiency of equipment use are improved.

Description

Technical Field

[0001] The present application relates to the technical field of vibration isolation equipment, and in particular to a vibration isolator with a curved honeycomb structure. Background Art

[0002] Equipment is often a weak link in a ship's shock resistance. Accidents such as ship-to-ship collisions and groundings can occur during navigation, challenging the shock resistance of marine equipment. Key equipment onboard, such as power plants, auxiliary machinery, generator sets, piping systems, and control cabinets, is typically connected to the mounting platform using vibration isolators to provide vibration isolation and shock resistance. With the increasing size of ships and the automation of marine equipment, the requirements for vibration reduction and shock resistance are becoming increasingly stringent.

[0003] Vibration isolators currently used primarily in marine equipment typically offer excellent vibration and noise reduction capabilities, but their impact resistance is relatively weak. For example, air spring dampers improve vibration and noise reduction capabilities by reducing their stiffness, which in turn reduces their impact resistance, posing a risk of damage under impact loads and compromising equipment safety. Rubber is often used as a damping material due to its high elasticity, deformability, and energy dissipation capabilities, making rubber isolators widely used in marine equipment installations. However, due to the inherent aging properties of rubber, it typically requires complete replacement after a specified period, which adds significant engineering workload to ship repairs and maintenance. Summary of the Invention

[0004] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. This section of the application does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0005] An embodiment of the present application provides a vibration isolator with a curved honeycomb structure, comprising: a vibration isolation body, the vibration isolation body comprising a curved honeycomb ring, the curved honeycomb ring comprising a plurality of curved honeycomb cells, the curved honeycomb cells comprising regular hexagonal curved honeycomb cells, triangular curved honeycomb cells, and hexagonal negative Poisson's ratio curved honeycomb cells.

[0006] Exemplarily, the curved honeycomb cell includes a plurality of cell walls that are sequentially connected and form a closed structure, the cell walls are arranged as a corrugated structure, and the corrugated structure includes two arc edges that are connected at the midpoint of the cell wall and face opposite directions.

[0007] Exemplarily, the vibration isolator with a curved honeycomb structure also includes: a shell, the vibration isolation body is arranged inside the shell; a movable shaft, the first end of the movable shaft is exposed outside the shell and is provided with a connecting portion, the second end of the movable shaft is located inside the shell and is movably connected to the shell through a connecting seat, and the curved honeycomb ring is arranged around the circumference of the movable shaft.

[0008] Exemplarily, the shell includes an upper shell, an outer shell, a pressure-bearing base and a mounting base from top to bottom, the top of the outer shell is detachably connected to the upper shell, the bottom end of the outer shell is connected to the pressure-bearing base, and the pressure-bearing base is connected to the mounting base; wherein, the connecting seat is connected to the pressure-bearing base, the upper shell is provided with an avoidance hole for avoiding the movable shaft, and the diameter of the avoidance hole is larger than the diameter of the movable shaft; a pressure ring is provided in the shell, the pressure ring is located between the upper shell and the curved honeycomb ring and is sleeved on the circumferential side of the movable shaft.

[0009] Exemplarily, the vibration isolation body also includes a middle pressure plate, a first pressure cylinder, and a second pressure cylinder. The middle pressure plate is connected to the circumferential side of the movable shaft, and the first pressure cylinder and the second pressure cylinder are respectively connected to the two ends of the middle pressure plate along the radial direction of the movable shaft; the curved honeycomb ring includes a plurality of ring bodies, and the plurality of ring bodies are distributed between the middle pressure plate and the shell along the axial direction of the movable shaft, and between the first pressure cylinder and the second pressure cylinder, and between the second pressure cylinder and the shell along the radial direction of the movable shaft.

[0010] Exemplarily, the multiple ring bodies include a first regular hexagonal curved honeycomb ring body and a second regular hexagonal curved honeycomb ring body, the first regular hexagonal curved honeycomb ring body is located between the middle pressure plate and the upper shell, and between the first pressure cylinder body and the second pressure cylinder body, the second regular hexagonal curved honeycomb ring body is located between the middle pressure plate and the pressure base, part of the second regular hexagonal curved honeycomb ring body is located between the first pressure cylinder body and the second pressure cylinder body, and part of the second regular hexagonal curved honeycomb ring body is located between the outer shell and the movable shaft.

[0011] Exemplarily, the second pressure cylinder is connected to the end of the middle pressure plate away from the movable axis, and the multiple ring bodies also include a hexagonal negative Poisson's ratio curved honeycomb ring body, which is located between the second pressure cylinder and the outer shell, and the bottom is configured to be adjacent to the second regular hexagonal curved honeycomb ring body.

[0012] Exemplarily, the plurality of ring bodies further include a triangular curved honeycomb ring body, which is located in a space enclosed by the pressure ring, the outer shell, the hexagonal negative Poisson's ratio curved honeycomb ring body, and the first regular hexagonal curved honeycomb ring body.

[0013] Exemplarily, the first regular hexagonal curved honeycomb ring body and the second regular hexagonal curved honeycomb ring body are formed by rotating the regular hexagonal curved honeycomb cells with the central axis of the isolator as the rotation axis; the hexagonal negative Poisson's ratio curved honeycomb ring body is formed by rotating the hexagonal negative Poisson's ratio curved honeycomb cells with the central axis of the isolator as the rotation axis; the triangular curved honeycomb ring body is formed by rotating the triangular curved honeycomb cells with the central axis of the isolator as the rotation axis; the outer surfaces of the first regular hexagonal curved honeycomb ring body, the second regular hexagonal curved honeycomb ring body, the hexagonal negative Poisson's ratio curved honeycomb ring body, and the triangular curved honeycomb ring body are covered with an elastic film.

[0014] Exemplarily, the mounting base is provided with a mounting portion located outside the housing.

[0015] An embodiment of the present application provides a vibration isolator with a curved honeycomb structure. The curved honeycomb ring of the vibration isolation body is formed by combining regular hexagonal curved honeycomb cells, triangular curved honeycomb cells, and hexagonal negative Poisson's ratio curved honeycomb cells, so that the stiffness of the vibration isolation body can be adjusted in three degrees of freedom, and the initial elastic modulus of the curved honeycomb cells is small, and the stress-strain curve is a typical J-shape with a gradually hardening feature. This allows the vibration isolator to improve its impact resistance while ensuring the vibration and noise reduction needs of marine equipment. The vibration isolator has the advantages of strong bearing capacity, a wide adjustable frequency range, good low-frequency vibration isolation performance, strong impact resistance, and a long service life. This solves the hidden danger of the air spring shock absorber in the related art being at risk of damage under impact loads, and improves the safety and economy of equipment use.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. Throughout the drawings, the same reference numerals are used to denote the same components.

[0018] Figure 1 One of the structural schematic diagrams of the vibration isolator provided in the embodiment of the present application is shown;

[0019] Figure 2 The second structural diagram of the vibration isolator provided in the embodiment of the present application is shown;

[0020] Figure 3One of the structural schematic diagrams of the regular hexagonal curved honeycomb cell provided in an embodiment of the present application is shown;

[0021] Figure 4 One of the structural schematic diagrams of the regular hexagonal curved honeycomb cell provided in an embodiment of the present application is shown;

[0022] Figure 5 One of the structural schematic diagrams of a hexagonal negative Poisson's ratio curved honeycomb cell provided in an embodiment of the present application is shown.

[0023] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names is as follows:

[0024] 100 vibration isolation body, 110 curved honeycomb ring, 101 corrugated structure, 111 regular hexagonal curved honeycomb cell, 112 triangular curved honeycomb cell, 113 hexagonal negative Poisson's ratio curved honeycomb cell, 114 first regular hexagonal curved honeycomb ring body, 115 second regular hexagonal curved honeycomb ring body, 116 hexagonal negative Poisson's ratio curved honeycomb ring body, 117 triangular curved honeycomb ring body, 120 middle pressure plate, 130 first pressure cylinder body, 140 second pressure cylinder body, 200 shell body, 210 upper shell, 211 avoidance hole, 220 outer shell, 230 pressure base, 240 mounting base plate, 241 mounting hole, 300 movable shaft, 310 connecting part, 400 connecting seat, 500 pressure ring. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0027] like Figures 1 to 5 As shown, the embodiment of the present application provides a vibration isolator with a curved honeycomb structure, including: a vibration isolation body 100, the vibration isolation body 100 includes a curved honeycomb ring 110, the curved honeycomb ring 110 includes a plurality of curved honeycomb cells, the curved honeycomb cells include regular hexagonal curved honeycomb cells 111, triangular curved honeycomb cells 112, and hexagonal negative Poisson's ratio curved honeycomb cells 113. Among them, the regular hexagonal curved honeycomb cells 111 are as shown in FIG. Figure 3 As shown, the triangular curved honeycomb cell 112 is as shown in FIG. Figure 4 As shown, the hexagonal negative Poisson's ratio surface honeycomb cell 113 is as follows Figure 5shown.

[0028] Among them, the regular hexagonal curved honeycomb cell 111 exhibits uniform mechanical properties under tension or compression in both the horizontal and vertical directions; the triangular curved honeycomb cell 112 exhibits a negative Poisson's ratio under horizontal tension or compression, but a positive Poisson's ratio under vertical tension or compression; and the hexagonal negative Poisson's ratio curved honeycomb cell 113 exhibits a positive Poisson's ratio under vertical tension or compression, but a negative Poisson's ratio under horizontal tension or compression. The negative Poisson's ratio caused by the changes in the curved honeycomb ring 110 partially offsets the effects of external forces through lateral expansion when subjected to external pressure or bending, resulting in a higher load-bearing capacity and a lower natural frequency than structures with a positive Poisson's ratio. This gives this type of structure advantages such as resistance to shear, notch, and fracture, as well as significantly improved rebound toughness. Consequently, the vibration isolator has the advantages of strong load-bearing capacity, a wide adjustable frequency range, good low-frequency vibration isolation performance, strong impact resistance, and a long service life.

[0029] Among them, the honeycomb structure itself has good impact resistance and has been widely used. The curved honeycomb structure in this embodiment has a smaller initial elastic modulus than the straight honeycomb structure, and the stress-strain curve is a typical J-shape with a gradually hardening feature. Therefore, as the core part of the vibration isolator, the curved honeycomb ring 110 including regular hexagonal curved honeycomb cells 111, triangular curved honeycomb cells 112, and hexagonal negative Poisson's ratio curved honeycomb cells 113 can give the vibration isolator a lower vibration isolation frequency and good impact resistance, so that the vibration isolator has better vibration isolation performance, and has the advantages of strong impact resistance and long service life, thereby improving the safety and economy of the equipment.

[0030] Therefore, the vibration isolator with a curved honeycomb structure provided in the embodiment of the present application mainly protects the equipment from impact by means of curved honeycomb impact isolation and deformation energy absorption. Since the curved honeycomb ring 110 of the vibration isolation body 100 includes regular hexagonal curved honeycomb cells 111, triangular curved honeycomb cells 112, and hexagonal negative Poisson's ratio curved honeycomb cells 113, that is, the curved honeycomb ring 110 is composed of a combination of the above three curved honeycomb cells, the stiffness of the vibration isolation body 100 is adjustable in three degrees of freedom, and the initial elastic modulus of the curved honeycomb cells is small, and the stress-strain curve is a typical J-shape, and has a gradually hardening feature, so that the vibration isolator improves its impact resistance while ensuring the vibration and noise reduction needs of marine equipment. It has the advantages of strong bearing capacity, wide adjustable frequency range, good low-frequency vibration isolation performance, and strong impact resistance, which solves the hidden danger of air spring shock absorbers in related technologies being damaged under impact loads, improves the safety of equipment use, and expands the scope of use.

[0031] Among them, with the development of additive manufacturing technology, the curved honeycomb ring 110 can be manufactured by additive manufacturing technology, such as by using steel and other materials to manufacture the curved honeycomb ring 110. That is, the curved honeycomb ring 110 of the vibration isolator provided in the embodiment of the present application can be manufactured by using steel and other materials through additive manufacturing technology. However, the rubber vibration isolator in the related art will produce creep and aging phenomena under long-term use due to the nature of the rubber material itself, and needs to be replaced according to the prescribed use cycle. The curved honeycomb ring 110 provided in this embodiment is manufactured by using metal and other materials through additive manufacturing technology. It does not need to be replaced when the structure of the vibration isolator itself does not undergo large-scale plastic deformation, which is conducive to extending the replacement cycle of the curved honeycomb ring 110 and improving the economic efficiency of ship maintenance. At the same time, it is convenient to process and easy to manufacture.

[0032] Among them, the metal spring vibration isolators in the related art, while having a strong load-bearing capacity, have a vibration isolation frequency range that is directly related to their size, and have relatively large installation restrictions. However, the curved honeycomb ring 110 of the present application, which is composed of a combination of regular hexagonal curved honeycomb cells 111, triangular curved honeycomb cells 112, and hexagonal negative Poisson's ratio curved honeycomb cells 113, allows the stiffness of the vibration isolation body 100 to be adjusted in three degrees of freedom, resulting in a wider adjustable frequency range within a limited installation range. This overcomes the relatively large installation restrictions of metal spring vibration isolators and allows for a wide range of applications.

[0033] Furthermore, the curved honeycomb ring 110 is set as a replaceable structure. For example, according to the vibration isolation and impact resistance requirements of the isolator in various directions, corresponding ring bodies can be formed by regular hexagonal curved honeycomb cells 111, triangular curved honeycomb cells 112, and hexagonal negative Poisson's ratio curved honeycomb cells 113, and a reasonable layout is performed to combine different curved honeycomb rings 110 in different combinations to achieve adjustable stiffness of the three degrees of freedom of the isolator, integrating low-frequency vibration isolation and impact resistance.

[0034] like Figure 3 、 Figure 4 and Figure 5 As shown, in some possible embodiments provided in the present application, the curved honeycomb cell includes a plurality of cell walls connected in sequence and forming a closed structure, and the cell wall is provided as a corrugated structure 101, and the corrugated structure 101 includes two arc edges connected at the midpoint of the cell wall and facing opposite directions, thereby ensuring that the cell wall of the curved honeycomb cell is a curved structure, so that each curved honeycomb cell has a smaller initial elastic modulus, and the stress-strain curve is a typical J-type with a gradually hardening characteristic, thereby ensuring that the curved honeycomb ring 110 can give the isolator a lower vibration isolation frequency and better impact resistance.

[0035] Among them, Figure 3As shown, the regular hexagonal curved honeycomb cell 111 is based on the regular hexagonal straight-sided honeycomb cell. The midpoint of the straight-sided cell wall is used as the turning point, and the straight-sided cell wall is replaced by a curved cell wall with two arc edges facing opposite directions to form a wavy structure, thereby realizing the regular hexagonal curved honeycomb cell 111.

[0036] Among them, Figure 4 As shown, the triangular curved honeycomb cell 112 is based on the triangular straight-sided honeycomb cell. The midpoint of the straight-sided cell wall is used as the turning point, and the straight-sided cell wall is replaced with a curved cell wall with two arc edges facing opposite directions to form a wavy structure, thereby realizing the triangular curved honeycomb cell 112.

[0037] Among them, Figure 5 As shown, the hexagonal negative Poisson's ratio curved honeycomb cell 113 is based on the hexagonal negative Poisson's ratio straight-edge honeycomb cell. The midpoint of part of the straight-edge cell wall is used as the turning point, and the part of the straight-edge cell wall is replaced with a curved cell wall with two opposite arc edges to form a wavy structure. In this way, the hexagonal negative Poisson's ratio curved honeycomb cell 113 is realized. Specifically, Figure 5 The hexagonal negative Poisson's ratio curved honeycomb cell 113 shown replaces four straight sides with a wavy structure.

[0038] Furthermore, by adjusting and controlling the arc edge length and the center angle of each curved honeycomb cell, the basic mechanical parameters of each curved honeycomb cell can be adjusted to meet the vibration isolation performance requirements of the vibration isolator and customize the design to expand the scope of use.

[0039] like Figure 1 As shown, in some possible embodiments provided herein, the curved honeycomb structure vibration isolator further includes: a housing 200, with the vibration isolation body 100 disposed within the housing 200, i.e., the curved honeycomb ring 110 disposed within the housing 200. The housing 200 serves as a support structure for the vibration isolation body 100, providing good protection and support for the vibration isolation body 100 and the curved honeycomb ring 110, and ensuring the high structural strength of the vibration isolator itself. It is understood that to further ensure the high structural strength of the vibration isolator itself, the housing 200 can be made of a high-strength material.

[0040] Furthermore, the vibration isolator also includes a movable shaft 300, which is a high-strength solid structure used to bear the vertical and lateral loads of the equipment under static and dynamic conditions. The first end of the movable shaft 300 is exposed outside the housing 200 and is provided with a connection portion 310, through which the movable shaft 300 can be connected to an external device. Specifically, the connection portion 310 can be a threaded structure, which facilitates the assembly and disassembly of the movable shaft 300 and the external device and ensures the reliability of the connection. It is understood that the connection portion 310 can also be a mortise and tenon structure, or other structures.

[0041] The second end of the movable shaft 300 is located inside the shell 200 and is movably connected to the shell 200 through the connecting seat 400, wherein the connecting seat 400 can be a hinge structure, so that the movable shaft 300 can move freely within a local range relative to the shell 200, so that the connecting seat 400 can enable the movable shaft 300 to withstand vertical loads while also having a certain lateral vibration isolation and limiting ability.

[0042] Among them, the curved honeycomb ring 110 is arranged around the movable shaft 300, that is, the curved honeycomb ring 110 is located between the movable shaft 300 and the shell 200. Therefore, the curved honeycomb ring 110 can buffer the load between the movable shaft 300 and the shell 200 from multiple directions to achieve vibration isolation.

[0043] like Figure 1 and Figure 2 As shown, in some possible embodiments provided in the present application, the shell 200 includes an upper shell 210, an outer shell 220, a pressure-bearing base 230 and a mounting base 240 from top to bottom, the top end of the outer shell 220 is detachably connected to the upper shell 210, the second end of the outer shell 220 is connected to the pressure-bearing base 230, and the pressure-bearing base 230 is connected to the mounting base 240; wherein, the connecting seat 400 is connected to the pressure-bearing base 230, and the upper shell 210 is provided with an avoidance hole 211 for avoiding the movable shaft 300, and the diameter of the avoidance hole 211 is larger than the diameter of the movable shaft 300.

[0044] Among them, the upper shell 210 is a tubular cylindrical cover structure, which mainly serves as the capping function of the shell 200. The inner wall of the upper shell 210 facing the outer shell 220 is provided with an internal thread structure, and the top of the outer shell 220 is provided with an external thread structure. The upper shell 210 and the outer shell 220 are disassembled and connected through the internal thread structure and the external thread structure.

[0045] A clearance hole 211 is defined at the center of the top of the upper shell 210. The diameter of the clearance hole 211 is larger than the diameter of the movable shaft 300, so that the clearance hole 211 does not impede the movement of the movable shaft 300. Specifically, the diameter of the clearance hole 211 can be slightly larger than the design value of the lateral limit displacement of the vibration isolator to ensure that the clearance hole 211 does not impede the movement of the movable shaft 300.

[0046] The outer shell 220 and pressure base 230 are cylindrical, and the mounting base 240 is a hexahedron. For example, the mounting base 240 can be a rectangular parallelepiped. The outer shell 220 primarily protects the internal vibration isolation body 100 and bears the lateral load from the internal curved honeycomb ring 110. Therefore, when the vibration isolator is operating, the outer shell 220 is subjected to uneven lateral loads, resulting in radial stress within the outer shell 220.

[0047] The pressure base 230 is a thick circular plate, primarily used to bear the load transmitted by the vibration isolation body 100. The upper shell 210, outer shell 220, pressure base 230, and square mounting base 240 are coaxially assembled. The upper shell 210 and outer shell 220 are screwed together via internal and external threads, while the outer shell 220, pressure base 230, and square mounting base 240 are welded together, ensuring a high connection strength for the main support portion of the vibration isolator.

[0048] Among them, Figure 2 As shown, the mounting base 240 is provided with a mounting portion, through which the entire vibration isolator can be mounted on the equipment to be assembled, such as mounting the vibration isolator on the main body of the ship equipment. Specifically, the mounting portion can be a mounting hole 241, a mounting block, a mounting frame, etc. Figure 2 As shown, the mounting portion is a mounting hole 241, and four mounting holes 241 are distributed at the four corners of the mounting base 240. It is understandable that the number and position of the mounting holes 241 can be in other forms, and this application does not make specific limitations.

[0049] Furthermore, a pressure ring 500 is disposed within the housing 200. For example, the pressure ring 500 is located within the top end of the outer shell 220. The pressure ring 500 is sleeved around the circumference of the movable shaft 300 so that the pressure ring 500 does not hinder the movement of the movable shaft 300. The pressure ring 500 is located between the upper shell 210 and the curved honeycomb ring 110 and is primarily used to transmit the load exerted by the upward movement of the curved honeycomb ring 110. Specifically, the pressure ring 500 is a solid circular ring and an elastic member, such as a high-strength material with a certain degree of elasticity, such as spring steel.

[0050] like Figure 1 As shown, in some possible embodiments provided in the present application, the vibration isolation body 100 also includes a middle pressure plate 120, a first pressure cylinder 130, and a second pressure cylinder 140. The middle pressure plate 120 is connected to the circumferential side of the movable shaft 300, and the first pressure cylinder 130 and the second pressure cylinder 140 are respectively connected to the two ends of the middle pressure plate 120 along the radial direction of the movable shaft 300; the curved honeycomb ring 110 includes a plurality of ring bodies, and the plurality of ring bodies are distributed between the middle pressure plate 120 and the shell 200 along the axial direction of the movable shaft 300, and between the first pressure cylinder 130 and the second pressure cylinder 140, and between the second pressure cylinder 140 and the shell 200 along the radial direction of the movable shaft 300.

[0051] The central pressure plate 120 is a high-strength circular plate, with its center fixed to the upper middle portion of the movable shaft 300. Because the multiple ring bodies of the curved honeycomb ring 110 are distributed axially between the central pressure plate 120 and the housing 200 along the movable shaft 300, the central pressure plate 120 can transfer the load of the upward movement of the movable shaft 300 to the ring bodies of the curved honeycomb ring 110, thereby acting as a buffer when external equipment moves upward. It is understood that the central pressure plate 120 can also transfer the load of the downward movement of the movable shaft 300 to the ring bodies of the curved honeycomb ring 110, thereby acting as a buffer when external equipment moves downward.

[0052] Among them, the first pressing cylinder body 130 and the second pressing cylinder body 140 are hollow cylindrical structures. The first pressing cylinder body 130 and the second pressing cylinder body 140 are respectively connected to the two ends of the middle pressure plate 120 along the radial direction of the movable axis 300. For example, the first pressing cylinder body 130 is fixed to the end of the middle pressure plate 120 close to the movable axis 300, and the second pressing cylinder body 140 is fixed to the end of the middle pressure plate 120 away from the movable axis 300. Since the multiple ring bodies of the curved honeycomb ring 110 are distributed radially along the movable axis 300, Between the first pressing cylinder body 130 and the second pressing cylinder body 140, and between the second pressing cylinder body 140 and the shell 200, the lateral movement of the movable shaft 300 can be applied to the ring body of the curved honeycomb ring 110 through the first pressing cylinder body 130 and the second pressing cylinder body 140. That is, the lateral movement of the movable shaft 300 will generate radial displacement, and the radial displacement of the movable shaft 300 can be applied to the curved honeycomb ring 110 through the first pressing cylinder body 130 and the second pressing cylinder body 140. The height of the first pressing cylinder body 130 can be slightly higher than the height of the second pressing cylinder body 140.

[0053] like Figure 1 As shown, in some possible embodiments provided in the present application, the multiple ring bodies of the curved honeycomb ring 110 include a first regular hexagonal curved honeycomb ring body 114 and a second regular hexagonal curved honeycomb ring body 115, the first regular hexagonal curved honeycomb ring body 114 is located between the middle pressure plate 120 and the upper shell 210, and between the first pressure cylinder body 130 and the second pressure cylinder body 140, the second regular hexagonal curved honeycomb ring body 115 is located between the middle pressure plate 120 and the pressure base 230, part of the second regular hexagonal curved honeycomb ring body 115 is located between the first pressure cylinder body 130 and the second pressure cylinder body 140, and part of the second regular hexagonal curved honeycomb ring body 115 is located between the outer shell 220 and the movable shaft 300.

[0054] Among them, the first regular hexagonal curved honeycomb ring 114 and the second regular hexagonal curved honeycomb ring 115 are formed by regular hexagonal curved cells, and are located on the upper and lower sides of the middle pressure plate 120 respectively. They are the main parts of the vibration isolator and are mainly used to bear and isolate the main loads of the vibration isolator under vertical tension and compression.

[0055] like Figure 1 As shown, in some possible embodiments provided in the present application, the second pressure cylinder body 140 is connected to the end of the middle pressure plate 120 away from the movable shaft 300, that is, the second pressure cylinder body 140 is located outside the first pressure cylinder body 130, and the multiple ring bodies of the curved honeycomb ring 110 also include a hexagonal negative Poisson's ratio curved honeycomb ring body 116, which is formed by hexagonal negative Poisson's ratio curved surface cells. The hexagonal negative Poisson's ratio curved honeycomb ring body 116 is located between the second pressure cylinder body 140 and the outer shell 220, and the bottom is configured to contact the second regular hexagonal curved honeycomb ring body 115. Its main function is to buffer the load of lateral movement of the vibration isolation movable shaft 300, and it is the core part of the lateral vibration isolation of the vibration isolator.

[0056] Among them, the hexagonal negative Poisson's ratio curved honeycomb ring 116 is a negative Poisson's ratio structure. The lateral expansion of the negative Poisson's ratio structure when subjected to external pressure and bending can partially offset the effect of the external force. The load resistance is higher than that of the positive Poisson's ratio, and the natural frequency is lower. Therefore, the vibration isolator has the advantages of strong bearing capacity, wide adjustable frequency range, good low-frequency vibration isolation performance, strong impact resistance and long service life.

[0057] In some possible embodiments provided in the present application, the curved honeycomb ring 110 also includes a triangular curved honeycomb ring body 117, which is formed by triangular curved cells. The triangular curved honeycomb ring body 117 is located in a space enclosed by the pressure ring 500, the outer shell 220, the hexagonal negative Poisson's ratio curved honeycomb ring body 116, and the first regular hexagonal curved honeycomb ring body 114; that is, the triangular curved honeycomb ring body 117 is located at the lower part of the top pressure ring 500, and the overall position is at the upper corner part of the shell 200, and its main function is to buffer the stress generated by the vibration isolator at the top corner.

[0058] In some possible embodiments provided in the present application, the first regular hexagonal curved honeycomb ring body 114 and the second regular hexagonal curved honeycomb ring body 115 are formed by rotating the regular hexagonal curved honeycomb cell 111 around the central axis of the isolator as the rotation axis.

[0059] The hexagonal negative Poisson's ratio curved honeycomb ring 116 is formed by rotating the hexagonal negative Poisson's ratio curved honeycomb cells 113 around the central axis of the vibration isolator.

[0060] The triangular curved honeycomb ring 117 is formed by rotating the triangular curved honeycomb cells 112 around the central axis of the vibration isolator.

[0061] In some embodiments, the outer surfaces of the first regular hexagonal curved honeycomb ring 114 , the second regular hexagonal curved honeycomb ring 115 , the hexagonal negative Poisson's ratio curved honeycomb ring 116 , and the triangular curved honeycomb ring 117 are covered with an elastic film for conducting pressure between adjacent rings.

[0062] In a specific embodiment, during the assembly process of the vibration isolator, the curved honeycomb ring 110 is placed from bottom to top and encapsulated by the upper shell 210 and the outer shell 220 through a threaded structure. Since the curved honeycomb ring 110 is initially bent and deformed when subjected to tension and compression, its initial elastic modulus is relatively small, and the stress-strain curve of the curved honeycomb ring 110 is a J-shape that is soft at first and then hard, which is a gradually hardening structure. Since the curved honeycomb ring 110 includes multiple ring bodies, the mutual collision of adjacent ring bodies can further dissipate the energy during the vibration impact process. The vibration isolator designed by filling the curved honeycomb ring 110 can have a lower vibration isolation frequency while having good impact resistance. Among them, the middle pressure plate 120, the first pressure cylinder 130, the second pressure cylinder 140, and the curved honeycomb ring 110 of the vibration isolation body 100 can be made of metal materials to achieve better radiation resistance.

[0063] In the description of this application, the term "plurality" refers to two or more, unless otherwise expressly defined. The orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship described in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application; the terms "connect", "install", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] In the description of this application, the terms "one embodiment," "some embodiments," "specific embodiments," etc., mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of this application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in any one or more embodiments or examples.

[0065] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A vibration isolator with a curved honeycomb structure, characterized in that: include: The vibration isolation body comprises a curved honeycomb ring, the curved honeycomb ring comprises a plurality of curved honeycomb cells, and the curved honeycomb cells comprise regular hexagonal curved honeycomb cells, triangular curved honeycomb cells, and hexagonal negative Poisson's ratio curved honeycomb cells.

2. The vibration isolator with a curved honeycomb structure according to claim 1, characterized in that: The curved honeycomb cell includes a plurality of cell walls that are sequentially connected and present a closed structure. The cell walls are configured as a corrugated structure. The corrugated structure includes two arc edges that are connected at the midpoint of the cell walls and face opposite directions.

3. The vibration isolator with a curved honeycomb structure according to claim 1, characterized in that: Also includes: a housing, wherein the vibration isolation body is disposed inside the housing; A movable shaft, wherein the first end of the movable shaft is exposed outside the shell and is provided with a connecting portion, the second end of the movable shaft is located inside the shell and is movably connected to the shell through a connecting seat, and the curved honeycomb ring is arranged around the circumference of the movable shaft.

4. The vibration isolator with a curved honeycomb structure according to claim 3, characterized in that: The housing includes an upper shell, an outer shell, a pressure-bearing base and a mounting base from top to bottom, the top end of the outer shell is detachably connected to the upper shell, the bottom end of the outer shell is connected to the pressure-bearing base, and the pressure-bearing base is connected to the mounting base; The connecting seat is connected to the pressure-bearing base, and the upper shell is provided with an avoidance hole for avoiding the movable shaft, and the diameter of the avoidance hole is larger than the diameter of the movable shaft; A pressure ring is provided in the shell body, and the pressure ring is located between the upper shell and the curved honeycomb ring and is sleeved on the circumference of the movable shaft.

5. The vibration isolator with a curved honeycomb structure according to claim 4, characterized in that: The vibration isolation body further includes a middle pressure plate, a first pressure cylinder, and a second pressure cylinder. The middle pressure plate is connected to the peripheral side of the movable shaft. The first pressure cylinder and the second pressure cylinder are respectively connected to the two ends of the middle pressure plate along the radial direction of the movable shaft. The curved honeycomb ring includes a plurality of ring bodies, which are distributed between the middle pressure plate and the shell along the axial direction of the movable shaft, and between the first pressure cylinder body and the second pressure cylinder body, and between the second pressure cylinder body and the shell along the radial direction of the movable shaft.

6. The vibration isolator with a curved honeycomb structure according to claim 5, characterized in that: The multiple ring bodies include a first regular hexagonal curved honeycomb ring body and a second regular hexagonal curved honeycomb ring body. The first regular hexagonal curved honeycomb ring body is located between the middle pressure plate and the upper shell, and between the first pressure cylinder body and the second pressure cylinder body. The second regular hexagonal curved honeycomb ring body is located between the middle pressure plate and the pressure base. Part of the second regular hexagonal curved honeycomb ring body is located between the first pressure cylinder body and the second pressure cylinder body, and part of the second regular hexagonal curved honeycomb ring body is located between the outer shell and the movable shaft.

7. The vibration isolator with a curved honeycomb structure according to claim 6, characterized in that: The second pressure cylinder is connected to the end of the middle pressure plate away from the movable axis, and the multiple ring bodies also include a hexagonal negative Poisson's ratio curved honeycomb ring body, which is located between the second pressure cylinder and the outer shell, and the bottom is configured to be adjacent to the second regular hexagonal curved honeycomb ring body.

8. The vibration isolator with a curved honeycomb structure according to claim 7, characterized in that: The multiple ring bodies also include a triangular curved honeycomb ring body, which is located in a space enclosed by the pressure ring, the outer shell, the hexagonal negative Poisson's ratio curved honeycomb ring body, and the first regular hexagonal curved honeycomb ring body.

9. The vibration isolator with a curved honeycomb structure according to claim 8, characterized in that: The first regular hexagonal curved honeycomb ring body and the second regular hexagonal curved honeycomb ring body are formed by rotating the regular hexagonal curved honeycomb cells with the central axis of the vibration isolator as the rotation axis; The hexagonal negative Poisson's ratio curved honeycomb ring is formed by rotating the hexagonal negative Poisson's ratio curved honeycomb cell with the central axis of the vibration isolator as the rotation axis; The triangular curved honeycomb ring body is formed by rotating the triangular curved honeycomb cells with the central axis of the vibration isolator as the rotation axis; The outer surfaces of the first regular hexagonal curved honeycomb ring body, the second regular hexagonal curved honeycomb ring body, the hexagonal negative Poisson's ratio curved honeycomb ring body, and the triangular curved honeycomb ring body are covered with elastic films.

10. The vibration isolator with a curved honeycomb structure according to any one of claims 4 to 8, characterized in that: The mounting base is provided with a mounting portion located outside the shell.

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